package com.atguigu.lease.web.admin.service.impl;

import com.atguigu.lease.common.minio.MinioProperties;
import com.atguigu.lease.web.admin.service.FileService;
import io.minio.BucketExistsArgs;
import io.minio.MakeBucketArgs;
import io.minio.MinioClient;
import io.minio.PutObjectArgs;
import io.minio.SetBucketPolicyArgs;
import io.minio.errors.ErrorResponseException;
import io.minio.errors.InsufficientDataException;
import io.minio.errors.InternalException;
import io.minio.errors.InvalidResponseException;
import io.minio.errors.ServerException;
import io.minio.errors.XmlParserException;
import java.io.IOException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.UUID;
import org.checkerframework.checker.units.qual.A;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

@Service
public class FileServiceImpl implements FileService {

    @Autowired
    private MinioClient minioClient;

    @Autowired
    private MinioProperties properties;

    @Override
    public String upload(MultipartFile file) throws ServerException, InsufficientDataException, ErrorResponseException, IOException, NoSuchAlgorithmException, InvalidKeyException, InvalidResponseException, XmlParserException, InternalException {

            boolean bucketExists = minioClient.
                    bucketExists(BucketExistsArgs.builder().bucket(properties.getBucketName()).build());
            if (!bucketExists) {
                minioClient.makeBucket(MakeBucketArgs.builder().
                        bucket(properties.getBucketName()).build());
                minioClient.setBucketPolicy(SetBucketPolicyArgs.builder().
                        bucket(properties.getBucketName()).
                        config(createBucketPolicyConfig(properties.getBucketName())).build());

            }

            String filename = new SimpleDateFormat("yyyyMMdd").
                    format(new Date()) + "/" + UUID.randomUUID() + "-" + file.getOriginalFilename();
            minioClient.putObject(PutObjectArgs.builder().
                    bucket(properties.getBucketName()).
                    stream(file.getInputStream(), file.getSize(), -1).
                    object(filename).contentType(file.getContentType()).build());

//            String url=properties.getEndpoint()+"/"+properties.getBucketName()+"/"+filename;

            return String.join("/", properties.getEndpoint(), properties.getBucketName(),filename);

    }

    private String createBucketPolicyConfig(String bucketName) {

        return """
                {
                  "Statement" : [ {
                    "Action" : "s3:GetObject",
                    "Effect" : "Allow",
                    "Principal" : "*",
                    "Resource" : "arn:aws:s3:::%s/*"
                  } ],
                  "Version" : "2012-10-17"
                }
                """.formatted(bucketName);
    }
}
